Make the Document Readable to More People

Accessibility is not a final checkbox you add after the “real” document is finished. It changes how information is structured and communicated from the start.

A document can be technically shareable and still be hard to use because headings are missing, links say “click here,” images have no useful description, or color is the only signal that something matters.

Four choices with high impact

Descriptive links

Instead of:

Click here for the source.

use text that describes the destination:

Read the robot sensor reference.

The link still works visually, but now the text provides context when scanned by itself.

Heading hierarchy

Real heading styles expose document structure. Use them according to the outline, not font preference.

Images and alt text

Alt text should communicate the image's purpose in the document. “image.png” is not useful. Neither is a 300-word visual transcript when the image is decorative.

For a diagram showing sensor flow, a useful description might be:

Flow diagram: distance sensor sends a measurement to the controller, which decides whether the robot should stop.

Color and contrast

If red means “failed” and green means “passed,” also include a text label or symbol. Color can reinforce meaning; it should not carry the only copy of the meaning.

Accessibility is an audience test

Imagine the Technology Brief will be read:

• on a Chromebook;
• on a phone;
• with zoom at 200%;
• with keyboard navigation;
• through a screen reader;
• printed in grayscale.

You do not need to simulate every possible disability to make useful improvements. You do need to stop assuming your own screen is the only reader context.

Run a focused accessibility revision

Take the structured sample from Lesson 1. Make at least four evidence-based improvements:

1. verify heading styles and order;
2. replace one vague link with descriptive link text;
3. add or improve one meaningful image description if the sample contains an image;
4. identify one place where color, spacing, or formatting could hide meaning.

If your sample has no image, explain what alt text would need to accomplish for a future image rather than inserting a decorative picture just to satisfy the exercise.

Misconception: “alt text describes every pixel”

The right description depends on context. A school logo used decoratively may need no meaningful description. A chart showing the evidence behind your conclusion absolutely needs an accessible equivalent.

Accessibility Revision Note

Record each change as:

The strongest evidence identifies the communication problem the revision solves instead of saying “I made it accessible.”